Glass-feeding method and apparatus



Aug 14, 1922,.

GLASS FEEDING METHOD AND APPARATUS Filed July 5l, 3,924 3 Shams-Sheet Aug. 14, 1928.-

S. GRCY'TTA GLASS FEEDING METHOD AND APPARATUS s. sgGR'oTT/x GLASS FEEDING METHD AND APPARATUS Aug. 14, 192s. www5 Filed July 33 M524 5 Sheetesdheei 3 @Q mais@ 'i 1?/ ffii/www transversely thereto. The panty 6 is provided with a shank portion which projects through a vertical opening or slot 7 formed in the l'rontl wall of the chamber 3 and is detachably and adjustably secured to one end of a shaft 8, which is journaled in bearings 9 and 10 carried by a cradle 12. 'lhe cradle 12 is provided with bearings 13 (Fig. (i) which are journaled on a pivot shalt l1 and a drive shaft 15. The shafts 1l and 15 are mounted in bearings 16 provided on a frame 17 which is carried by a base 18.

The punt i 6 is intermittently rotated in order to gatlier a predetermined quantity of glass thereon, by means of a bevel gear 19 which is loosely mounted on the shaft t5. he gear 19 is driven by a bevel ge: r 2O which 1s fixed to the shaft 15. A spur gear 22 is also fixed to the shaft 15-and is driven by a gear 23 through the medium of suitable reduction gearing 24. 'lhe gear wheel 23 is fixed to a cam shaft 25 which is mounted in bearings 26 carried by the frame 17 and which is provided with a gear 27 for operative connection with a glass-shaping machine, not shown. The gear 19 is formed with a clutch face 28 for engagement by a movable clutch member 29 which is splined to the shaft 8. spring 30 is provided for maintaining the member 29 in engagement with the face 28 of the gear 19 when it is desired to rotate the shaft 8 and the panty 6 carried thereby. The member 29 is periodically moved out of driving engagement with the gear 19, against the action of the spring 30, in order to intermittently interrupt the rotation of the panty 6, by means of a suitable yoke 32, which is provided on a clutch lever 33. This lever is pivotally mounted on a shaft 34,which is carried by the frame 17, and is provided with an arm which carries a roller 36 for engagement with a cam 37. The cam 237 is mounted on the cam shaft 25 and is preferably adjustable in order to properly time the rotation of the panty 6 with respect to other movements of the machine, hereinafter to be described. As'the cam 37 rotates, the lever 33 is rocked upon th shaft 34 and permits the clutch member 29 to periodically engage the continuously rotating gear 19, and to intermittent] transmit its rotative movement to the sha t 8.

The cradle 12 is recited upon its supporting bearings to raise and lower the punly (i relative to the outlet 2, in order to control the flow of glass through the outlet, by means of'a rod .'58, which is pivotally connected at. its upper end to the bearing 10 and which is provided with a roller 39 for engagement with a cam Ll() carried by the cam shaft 25. This cam is adjustable in order to vary the time of the vertical movement of the puntv 6. The lower end of the rod 3S is provided with a slot 42 through which the power shaft 25 extends, and which maintains the rod 38 and roller 39 in operative position with respect to the cam 40.

'l`he shearing device consists of a pair of coacting shear blades 23, which are adapted to enter a horizontal opening 41 provided in the iront' wall of the chamber Si and to sever a mold charge from the purity ti. (lne of the shear blades is tixcd to thc upper end of a. vertical sleeve 4U and the other blade is tixcd to a roch shaft l5 which extends through the the sleeve 4h. 'lhe sleeve 1li and roel; shalt '15 are mounted within a bearing 47 which is .supported by a brat-liet iti carried b v the base lb', and are roi-hed in opposite directions by means of a bevel gear Ai9, which meshes with bcvcl pinions .3() and 511 which are respectively secured to the lower ends of the sleeve it and rock shaft The bevel gear -l9 is fixed to a shaft o4 which is mounted in hearings (not shown) which are also carried by the bracket Atrl. A .s nir gear is also iixed to the shaft i-l and is actuated by means of an intermeshing rack bar 56. The rack bar 56 slidably mounted in a suitable guideway 5T which is carried by the base 18 ofthe machine, and is reeiprocated by means of a levcr 5S which is pivotally mounted upon the shaft 34. The lever 58 is provided with a cam roller 59, which is maintained in engagement with a cam (30 by means of a spring (51. The cam GO is mounted upon the power shaft and is preferably adjustable in order to synchronize the movements of the shears 43 and of the punty 6.

The shear blades 13 each swing throu rh an are of substantially 90D and consequent y occupy positions exterior to the chamber 3 at the limit of their opening movement, where they may be conveniently cooled by any suitable means. not shown.

Considering the machine with the several parts occupying the. positions shown in li'ig. 5, the operation thereof is as followsz-- As the cam shaft 25 rotates, the cam 40 will rock the cradle 12 about its pivotal support, and lower the punty to open the oriiice 2. thereby permitting,r glass to llow down wardly upon the puuty (Fig. l.) Substantially simultaneously with this movement of the purity, the cam 37 releases thc lever 33 and permits the springr il() to move the clutch member 29 into contact with the clutch face 28 on the continuously rotating gear 19. As soon as these members engage. tlaushalt ta' and the puuty (i. will be caused to rotate and gather the. glass as it emerges Yfrom the orifice 2 (Fig. 2). When a predetermined quantity of glass has accuumlated on the punty. the latter again raised by the cani 40 to close the outlet 2 thereby interrupting the flow of glass thcretliri'iugh (Fig. 3). At substantially the saine tim'e. the cam 37 disengage's the clutch member 29 from the ear 19, thereby stopping the rotation of the s iaft 8 and the panty 6. The cessation of the r0- llt gear 9d is fixed to one end oi. a. roet: shaft 97 which Vis journaled in bearings 98 and 99 that respectively earried by the standard and a bracket lili). The shaft 9T is rocked in opposite directions in order to alternately open and close 'the shear blades, by 'means ot a eranlf: i025, which is il lto the other end oie the .shaft 9i" and which oscillatcd by means oi a reciprocable rod 10%. l'lhe rod loll; is provided with a. roller 105 for en ,sagement by a cani 10G which is mounted on the iit't il) for circumferential adjustment. erom the .i'oregoing itwill he apparent that a relatively simple and ciiicient glass feeding a,i par^.itus is provided in which the gathering element not only functions as a positive closure for the orifice. of the feeder, but iuay oe regulated in its movement-s to control the lion' ot glass and the size and shape oi the mold charges delivered by the `apparatus- Q l a The particular embodiments of the. invention illuslrated and described have been selectcd by way of example only," and it to be tuiderstood that various moditications, arrzmgenients and combinations may be emplayed in iullilling the spirit ot the invention, as dolincd in the appended claims.

l claim: l. A glasseeding apparatus comprising a container having an outlet for discharging glass down fardly, a gathering element disposed beneath said outlet in angular relation to the axial line of the outlet tor su*l porting the glass discharged through the outlet in successive suspended masses, means for moving said implement. to periodically interrupt the ilow of zglass from the outlet,

and means Alor severing mold charges from said suspended masses.

It glass 'feeding apparatus comprising s receptacle `for containing molten glass and having' a vertical feeding outlc't therein, a. punti member disposed beneath said outlet and in angular.relation to the axis thereof, and ineens lor moving said purity member toward aud away from said outlet to interrupt the lionv ot therethrough.

Si. fr glass 'feeding apparatus comprising a 'receptacle for containing' molten glass and having,r a vertical feeding outlet therein, a. rertically movable gathering' clement disposed beneath said outlet and in angular relation to the axis thercol, and means i'oru iuoviut,ysaid ,gathering clement tdward and away 'from said outlet to interrupt the l'low of `glass therethrough.

l. A glass 'feedingl apparatus c nnprisin5r a receptacle 'for containiim1 molten glass and haring; a rertical feeding outlet thereiiula gathering yeleinent disposed beneath said outlet and in angular relation to the axis there of, and ineens for raising and loweringy said itsthoringV clement relative to said ditlet to interrupt the :dow of glass therethrough.

Lesiones 5. A lass feeding apparatus comprising a receptacle for containing molten glass and having a feeding outlet therein, a purity member disposed adjacent to said outlet and in angular relation tothe axis thereof, and

,means for oscillating said punty member relative to the outlet to interrupt the flow ot glass therethrough.

t5. .fi glass feeding apparatus comprising a receptacle tor containing ymolten glass and having a feeding outlet therein, a. purity nieiuber disposed adjacent to said outlet and in angular relation to the axis thereof, means for moving said punty member relative to the outlet to interrupt the flow of glai therethrough, and means for varying the frequency of such movement.

T. A glass feeding apparatus comprising a receptacle for containing molten glass and having a feeding outlet tluircin, a rotatable gathering element disposed. outside ot the receptacle and having; the axis of rotation thereolI extending transversely to the axis ol said feeding outlet, and means for moving said gathering.: element relative to the outlet to interrupt the flow of glass there through.

8. A glass feeding;` apparatus comprising a receptacle. for containing molten glass and haring a feeding;l outlet therein, a rotatable gathering* element disposed outside of the recept-.rele and havingr the axis of rotation thereof extending' transversely to the axis ot' said feeding outlet, and means for inovingr said gathering element relative to said ill') outlet to periodically interrupt the 'flow 0i glass therethrough.

i). A glass feeding apparatus comprising a receptacle for containing molten glass and having a feeding outle; therein, a rotatable gatheringl clement disposed outside of the receptacle and having the axis of rotation thereof extending transversely to the axis'ot said feeding outlet and means for periodically moving the element toward and away troni said outlet to periodically interrupt the How v0f glass therethrough,

l0. glass feeding apparatus Comprisinga receptacle for containing molten glass and haring a feeding outlet therein, and a rov taiable closure member disposed with the axis of rotation thereof extending; transversely to the axis oi said feeding outlet, and means for moving said closure member relative lo'said outlet to interrupt-the flow of glass theretluough.

ll. A glass feeding apparatus comprising a receptacle for containing' molten glass and having a "feeding outlet therein, a rotatable ,gatheringelement disposed outside of the receptacle and having the airis of rotation thereof extending transversely to the axis et said feeding outlet, means for moving said lll) gathering element to intermittently openand close said outlet to periodically inter Leeoxea lill tation of the panty permits the glass to sag thereon under the action of gravity to forni a depending;v mass. This formation is augmented by the contact of the r{ nither with the lower Wall of the orifice 2,'whieh tends to positively displace a portion of the gather on the n )per part of the panty, and cause it to iow downwardl)l and increase thc si e of the dcpen'cling hodg,v of glass. At this time the cam GO actuales the shears 43, through the medium of the connecting instrumentalities, and scvers the depending mass (Fig. 4f.) to form a mold charge which falls into a mold or upon a delivery chute, not. sln'iwn'. The size and shape of the mold charges thus formed may be varied by adjustingr the ser' eral cams relatively to each other, in order "to regulate the 'interval of time elapsing between the successive operations and the respective durations thereof.

In certain instances it may be desirable to delay the sagging of a gather on the panty with respect to the action of the severing device without necessarily iin-,reusing the size o the gather or the resulting mold chargeY This is accom lished through the'n'iedinm of a cam 62 which, acting conjointly with the cam 40, raises the panty in two distinct movements or steps. The lirst of these movements occurs when the gather has reached the proper size and is caused by the cam G2 engaging the roller 39 and raising the panty to a position in which the gather formed thereon interrupts the flou' of glass through the orifice. During the time that the punty occupies this position, it is rotated to prevent the gather from prematurely sagging on the panty. At the termination of a dwell ofsnlhcient and. variable duration, the cam encounters the roller 3;) and raises the punty the remainder of the distance to a position in which it completely 'closes' the eri lice and displaces the gather as previously described. The duration of the dwells in the described movements of the panty are regulated by adjusting the cams l0 and lli) singularly relatively to cach other.`

It will he understood that by advancingaT or retarding the :lotion of the puuty with re.- speot-to that of lhesevering device,` drops or mold charges ot' different shapes and sizes may he readily obtained. For example. by adjusting: the movement ot the panty so that, a mold chal-fre is severed thortll,Y after the rotation of tie punty stops and before the gather has had time to sag materially, a short and relatively chunky mold char-ge is obtained. On the other hand, if-the movement of the panty is regulated to provide a sullieient dwell prior tothe action of the severing device, such as will permit the gather to sag an appreciable amount, an elongated mold charge will be the result.

In Figs. l0 to 13 inclusive al modification ai the invent-'on is illustrated. In this particular structure the purity (i is fixed to the end olf a shaft (S3, which is rotatably inountcd in a hearing (il. rl`hc .shaft (53 may bc adjusted longitudine:llv'Y in the bearing: (il in order to properly position thc puniy relative to the orifice 2, by any convenient means, herein shown as comprising fret collars, lu'i. The lnfaring lll ie provided with a lirucltct Utl. which is pirolali;Y connected lo a bracket (57 to pci-init the shaft lill und the punti; (l to he oscillaiciil vertically lo control the flow of glass from the orifice The bracket lll is carried hy a standard titi which .in tarn carried liv the hase (lll ot' the apparatus. A. shaft 7) is iournaled in hearings i3 and il which are respectively carried by the standard (3S and a standard T5 which is also mounted on the hase (l). 'lhe shaft 70 is driven by a `gear Tlf, which may he operatively connected with n glas, hoping Ina.- chine or with an independent source of power.

Rotativo movement is imparted to tho shaft ($3 and punty G through the medium of a friction drive wheel 7T which is fixed to the shaft T0 and which is adapt-ed lo he periodicall)` engaged b v a friction pullejv T8 fixed to the shaft (lil. The shaft ll'l and. lnmty G are intermittentl)y raised and lowered in order to clozsc and open the orilicc 2, by means of an adjustable cani Til which is mounted upon the shalt tl for circuni ferential adjustment, thereon. This cani engages a roller 80 c: 'ried h5' a slide 4eil which is mounted for vertical movement in a guideway 8learried liv the bern-ingr Til. 'l'he upper portion of the slide eil is liiluicatcd (Fig. 13) and is pivotally connected lo a sleeve dS5 in which the shaft (33 is rotatably and slidahl)v supported. When the czun T) raises the shalt (lli in order to clcvato the punty to a position in which it closes thc ori tice Q, the pullc)y T8 is lifted out of driving engagement. with the wheel TT (Fig. l0), flcr u niold charco is severed from the ,gather carried by the purity. thc. punti' is again caused to descend to opcn the orifice, and the pulley 7S is siuinltancously lowered into drivin;r cnp'agcincnt. with the rlliccl ii'.

The scvcring; dcricc. in the prcwgnl in stance. is substantially the saine as that dcscrihcd in connection with the structure shown in lfigg. l. (lne ol' the blades il ilu.-

sleeve Elta which is mounted in a licaringg tif! carried by the standard '55". 'ille othcr shear blade is fixed to :i rock shaft .'lll which cxtends through the sleeve und is journalcd at: its lower end in a hearing` tll which is also carried by the stand rd T5. The .sleeve S3 and shaft 9() are rooted in opposite directions hy means of a bevel gear lll which meshes with bevel pinion.l 95 and 9G which are respectively Secured to the lower ends ot the sleeve 88 and the shaft 90. The lievel Sli till

r'upt the tiow of gloss therethrough, and means :for regulating the period ot interruption so as to very the size otl the resulting gather.

The method of feeding glass which eornprisee iowing gloss through an outlet in the bottoni of n eontuiner and upon a. gathering element positioned beneath the outlet, rotating element to accumulate a gather thereon, moving the element toward the outlet to interrupt the flow of glass, and severing e mold charge from the resultant mass of gloss oceumulated on said gathering element after the seid moss has sagged below' said gathering element.

lh The method of feeding glass which comprises flowing the glass' through an outlet-in the bottom of e container and upon gathering implement positioned beneath the outlet, periodically rotating seid element to accumulate e. gather of glass thereong moving the element toward the outlet tocinterrupt the flow of glass, permitting the gather, to sag beneath' said gathering elef nient, und then severing a mold charge from seid iones.

le. The. method ot' Afeeding gloss which comprises tlowing glass through an outlet ,t'rorn a container und, upon a gatherirneJ ele4 ment located in line with and beneath seid outletJ rotating; the gather, periodically ratising und lowering said gathering element to automatically interrupt the low of glass through said orifice and to re-establish euch flow, and severing a mold charge from each of the resultant masses accumulated on said .to below said gathering element, and

then severing; o mold eherge troni seid mass.

16. The method or" feeding gloss which comprises flowing glass through an outlet from a container, intereepting the flow by a rotatable gathering element7 rotating the gather, moving the said getlierin.' element upward und in line with said out et, thereu by obstructing said outlet und interrupting the lieu of gloss, pern'iitting the gloss to sag; from tbe gathering' element, and. shearing; o, mold charge trom the depending muss oi:

il'. lhe method ot 'feeding' glass which comprises iiowing glues through outlet from a container, intercepting the liow by ineens ot a gathering element located in line with und beneath seid outlet, rotating said element to prevent the accumulating; mess from sagging, interrupting the rotation of the gathering; element, moving the seid elen ment upward to obstruct the liow from the said outlet, and thereby displacing' the gloss above seid gathering element and increasing the muss of gloss already depending from4 the gathering element, and severinga mold charge from the said mass.

18. ln glass feeding apparatus, a, oontainer for molten glass having o discharge outlet7 o movable discharge regulating meniber outside of said container, and means for moving said flow regulating member towurd and from the outlet to and from position to Stop discharge :troni the outlet, said means being operable to move seid flow regulating member by o. series of steps in one directionu 19. in glass feeding apparatus, o container for molten glass having e' discharge outlet, o movable discharge regulating member outside of said container, means 'for moving 'Said flow regulating member toward and from the outlet to and troni position to stop discharge from the outlet, said ineens being operable to nuove said flow regulating rne1nber by o, series oi steps in one direction, und ineens for adjusting said .member moving means to adjust the relativetizning oi" said step movements.

20. ln glass feeding :ippzurzrtus7 a oonteiner for molten glass herring disoharte outlet in its bottoni9 o vertically odjusteb e tiow regulating' implement depending in the gloss in the container substantiall.;V in axial alignment With the outlet :tor regulating the discharge et gloss from the conteiner, means below the outlet "for interceptiongq the discharged gloss as it issues from the outlet und for suspending the discharged gloss in eueeessive masses below the outlet7 and ineens for severing a .mold charge rorn oooh of said suspended messes Signed at l-lzirtlford9 Conn., this 30th. day

oi July 192i.

Slililll GRTTL. 

